甲烷化反应器开车时,升温用的氮气软管用完后应()。A.关闭阀门即可 B.脱除软管 C

题型:单项选择题

问题:

甲烷化反应器开车时,升温用的氮气软管用完后应()。

A.关闭阀门即可

B.脱除软管

C.保持常开

D.没有特殊要求

考点:乙烯装置操作工乙烯反应器系统乙烯反应器系统题库
题型:单项选择题

某场地为黏性土场地,基础埋深为2.5m,深宽修正后承载力特征值为230kPa,场地中条形基础受到上部结构传来的荷载效应标准组合为330kN/m,条形基础采用普通混凝土基础,墙宽为0.24m,据《建筑地基基础设计规范》(GB50007—2002),基础高度不宜小于()m。

A.1.0

B.1.06

C.1.15

D.1.20

题型:单项选择题

情景反应。

1. — Sorry, I don't know.

    — _____.

A. Thank you.

B. Why not know 

C. Thank you all the same

D. Not at all

2. — Let's have sports.

    — _____.

A. All right

B. That's right

C. That's all right

D. You're right

3. — May I speak to Mr. Li?

    — _____.   

A. Yes, I am.   

B. No, you may not  

C. Sorry, he isn't here 

D. Sure, he is out

4. — Who's that?

    — _____.  

A. This is Tom

B. It's Lily

C. That's Kate

D. It's me

5. — Yes, it's mine.

    — _____  

A. Give you.

B. Here you are. 

C. Where is it?

D. Whose is it?

6. — Do you speak Chinese?

    — _____.

A. Yes, only a little   

B. Yes, only a few

C. No, I can't    

D. No, you don't

7. — _____?

    — She's an office worker.

A. What are you   

B. What does she do

C. How do you do   

D. How is she

8. — _____?

    — Of course, here you are.

A. May I have a look

B. Would you like to have a picnic

C. May I take your order

D. Could you do me for a favor

9. — Can I help you?

    — _____.

A. I need a few things

B. I think so

C. I'm looking for a shirt for my son

D. How much do you want for the watch

10. — Oh, sorry. Here is your change.

      — _____.

A. It doesn't matter

B. You're welcome

C. It's very kind of you

D. Thanks a lot

题型:单项选择题

腹腔穿刺液中有大量中性粒细胞,革兰染色阴性杆菌()

A.原发性腹膜炎

B.胃、十二指肠穿孔

C.阑尾炎穿孔

D.肝脾破裂

E.出血坏死性胰腺炎

题型:单项选择题

剪刀撑:设在脚手架外侧面、与墙面平行的十字交叉斜杆,可增强脚手架的()。

A.纵向刚度

B.竖向刚度

C.横向刚度

D.其他

题型:单项选择题

电液伺服阀油的工作过程?

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